cat that looks like he is having trouble urinating. >> ron, do not walk to the veterinarian. if he is training in the letterbox, he cap -- litter boxes, these blockages could kill a cat very quickly. go to your veterinarian. many times you can treat it with just proper diet. >> one more, i dog is 10 years old, has never been aggressive, but recently bit off the tip of my finger. should i be concerned about future incidents? would you be concerned? >> yeah, your finger wasn't it off. off.hould -- was bit you should be concerned. if your dog has bitten you, it is not a great dog to have. >> there is a public. thank you.